Pawar Multispeciality Hospital & Diagnostic Centre Pvt Ltd IS A Reliable and one of the Best Oncology Treatment Hospital in Pune. The Department of Oncology of Pawar Multispeciality Hospital & Diagnostic Centre Pvt Ltd provides the comprehensive cancer care with the trans-disciplinary and multi-modality approach to adult and kids. Oncology is the study of cancer. ... A medical oncologist treats cancer using chemotherapy or other medications, such as targeted therapy or immunotherapy. A surgical oncologist removes the tumor and nearby tissue during surgery.